Cutting apparatus



April 1945- B. M, JANSEN ET AL 2,372,784

CUTTING APPARATUS Filed Jan. 13, 1944 I 2 Sheets-Sheet l Inventors.Zaiiz fit 75 .s'en

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- WWW p April 3, 1945. B. M. JANSEN ET AL CUTTING APPARATUS Filed Jan.13, 1944 2 Sheets-Sheet 2 Zd/Z findezz jred ZLZZ'i'Zey Patented Apr. 3,1945 s UNITED CUTTING APPARATUS Bollie M. Jansen and Fred L. Kitley,Caldwell, Ohio Application January 13, 1944, Serial No. 518,142

2 Claims.

Our invention relates to improvements in cutting apparatus, theprincipal object in view bein to provide simply constructed,inexpensive, portable apparatus for quickly and easily cutting sheetmaterial such as commercially designated Transite, which is of a texturesuch that sawing of the same is impracticable and frequently results inirreparable injury to saws.

Other and subordinate objects are also com- Figure l is a view inperspective illustrating our improved cutting apparatus in its preferredembodiment,

Figure 2 is a fragmentary view in longitudinal section, drawn to anenlarged scale,

Figure 3 is a view in transverse section taken on the line 33 of Figure2,

Figure 4 is a similar view in transverse section taken on the line l4 ofFigure l, and

Figure 5 is another similar view taken on the line 5-5 of Figure 2.

Referring to the drawings by numerals, in the preferred embodimentthereof, our improved cutting apparatus comprises an elongated,rectangular platform I, of any suitable size, embodying longitudinallyextending, tongue and groove planks 2 suitably secured to and adapted tobe supported by end and intermediate cross cleats 3, A, a pair ofcontiguous planks 2 being spaced apart in the longitudinal center of theplatform 1 to provide a central, longitudinal slot 5, and said cleatsbeing notched, as at 6, below said slot. A pair of angle iron bars I aremortised into the before mentioned contiguous planks 2, respectively, toextend down through the slot 5 and provide metal sides for the same.Screws 8 secure the bars I in place. The corner edges of the bars 1 formribs 9 at the top of the slot 5 for a purpose presently seen. -A pair ofspacing collars, on of which is shown at ID, are provided in the slot 5between the bars 1 adjacent each end of the slot 5, with bolts extendedthrough the same and said substantially oval shape, and extendinglengthwise downwardly through the slot 5, and which is provided at itsupper end with a fiat shank l6 extending obliquely from the head. Abifurcated handle bar I! straddles the free end of the shank l6 and isbolted thereto, as at Hi, to extend therefrom. Above and below the slot5, which is to say the bars 1, the head I5 is provided with upper andlower pairs of aligned, lateral studs I9, 20 extending from oppositeides of said head. Intermediate th pairs of studs 19, 20 said head isprovided with side bosses 2| fitting loosely between the bars 1. Theshank l6, intermediate the head l5 and the handle bar I1, is providedwith a toothed lower edge, the teeth 22 of which are pitched forwardlyand are fiat faced, as best shown in Figure 5.

In using the described apparatus, the sheet 23 i placed on the platformI, as shown in dotted lines in Figure l. The described tool I4 is pulledalong the slot 5 until the teeth 22 overlie the near edge of said sheet.The tool I4 is then rocked downwardly to force the teeth '22 through thesheet with the lower pair of stud 20 fulcruming against the lower edgesl3 of the bars I. Said tool is then rocked upwardly with the upper pairof studs [9 fulcruming on top of the bars I to withdraw the lower edgeor teeth 22 out of the cut, then pulled along the slot 5 to position theteeth 22 for another cutting operation and then again rocked downwardly,as previously described, to effect another cut in said sheet. Theoperations described are repeated until the sheet is completely, orpartially, severed, as desired. The bosses 2| and the ribs 9 prevent thetool from wobbling sideways during operation thereof, the advantage ofwhich will be clear.

The foregoing will, it is believed, sufiice to impart a clearunderstanding of our invention without further explanation.

Manifestly, the invention, as described, is susceptible of modificationwithout departing from the inventive concept, and right is hereinreserved to such modifications as fall within thescope of the appendedclaims.

What we claim is:

1. In apparatus of the class described, a platform structure comprisingsupporting cleats, said structure having a central slot therein extendinfrom side to side thereof, metal bars lining the sides of the slot, anda cutter tool including a handle, and a head slidable in said slot andadapted to be rocked vertically by said handle, and upper and lowerpairs of studs on said head overlying and underlying'said bars,respectively.

sides of the slot, and a cutter tool including at.

handle, and a head slidable in said slot and adapted to be rockedvertically by said handle, and upper and lower pairs of studs on saidhead overlying and underlying said bars, respectively, for engagementwith the bars to form fulcrum members during rocking of the head, saidtoo] including a shank extending from the head and provided with atoothed cutting edge overlying said, slot, said teeth being fiat faced,and pitched 10 toward thetheadi BOBBIE Mi JAN SEN. FRED L. KITLEY.

